Alert archive / Wisconsin / Frost Advisories in 2026

Frost Advisory 2, NWS Milwaukee, WI

April 30, 202612 counties in Wisconsin

NWS Milwaukee, WI issued this frost advisory at Apr 30, 2026, 1:10 PM CDT for 12 counties in Wisconsin. It took effect at May 1, 2026, 12:00 AM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Apr 30, 2026, 1:10 PM CDT (18:10 UTC)
In effect from: May 1, 2026, 12:00 AM CDT
Expired: May 1, 2026, 8:00 AM CDT
In force: 8 hr
Issued by: NWS Milwaukee, WI

Counties Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Green County, WI, Iowa County, WI, Jefferson County, WI, Lafayette County, WI, Rock County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 34 km from the middle of the area, began a volume at 18:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before this frost advisory went out at Apr 30, 6:51 AM CDT, 6 hours 19 minutes earlier.

Area forecast discussion, Apr 30, 6:51 AM CDT, 6 hours 19 minutes before

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Hazardous weather outlook, Apr 30, 6:29 AM CDT, 6 hours 41 minutes before

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</head>
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  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 30, 6:47 AM CDT	Dense Fog Advisory	MKX	Jefferson, Kenosha, Racine, Walworth, Washington, Waukesha	2 hr
Apr 30, 1:10 PM CDT	Freeze Warning	MKX	Columbia, Green Lake, Marquette, Sauk	19 hr

Nearby

Frost Advisories in Wisconsin, 2026 Every frost advisory in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.